Reproduction of seismic waves caused by large sediment movements: Results of model experiments
Kazuo TSUTSUI, Takaki SAKAGUCHI, Soichi KAIHARA, Yuta TANIDA, Atsuhiko KINOSHITA, Suguru SHIBATA, Akito KANAZAWA, Hiroaki NAKAYA, Yoshifumi SATOFUKA, Masamitsu FUJIMOTO
Seismic sensor networks detect ground vibrations caused by the movement of large masses, predominantly at low frequencies of 1―3Hz. We modeled sediment flow down a slope and measured ground vibrations in cases with and without a concrete wall at the end of the slope. The sediment weight, amount of water, and presence of iron balls were varied, and the waveform and amplitude spectrum were analyzed. As a basic, small‐scale experiment, physical dissimilarities were not adjusted for. Nevertheless, the ground vibration amplitude and low‐frequency waves mimicked real‐world seismic vibrations.
deep‐seated landslide, seismic wave, seismic characteristics, model experiment